How to remove Broken Link Checker widget from admin menu

I’m trying to clean up the Admin Dashboard widgets so that only the administrator level users can see the various meta boxes, but no matter what i’ve tried the Broken Link Checker widget will not go away (see example code below).

I’m using WordPress 3.1 MultiSite Network and working with this code in the MU plugins folder … not sure that matters … i’ve also tried Adminimize plugin but that did not work for me on the widget either.

/* Turn off Dashboard Widgets */

if( is_admin() )
    add_action('wp_dashboard_setup', 'remove_dashboard_widgets' );

function remove_dashboard_widgets() {
    global $wp_meta_boxes;
    unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_quick_press']);
    unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_incoming_links']);
    unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_right_now']);
    unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_plugins']);
    unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_recent_drafts']);
    unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_comments']);
    unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']);
    unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']);
    unset($wp_meta_boxes['dashboard']['normal']['core']['blc_dashboard_widget']);
}

Thanks in advance for any pointers … cordially,
Chuck Scott

The problem is probably just that your code runs before broken links checker adds the meta box. Try changing the action line to this:

if(is_admin()){
  add_action('wp_dashboard_setup', 'remove_dashboard_widgets', 1000 );
}

EDIT

To be a little more clear, the particular issue here is that the add_action() function is running super early compared to Broken Link Checker’s add_action function. The two ways to fix that issue are to either run your code later (hooking your plugin’s main functionality onto init and throwing your actions and filters into that init function), or increasing the precedence of your action (what I suggested above).